Elevated railway



3 Sheets-Sheet 1.

(No Model.)

I L. T. PYOTT. ELEVATED RAILWAY, BRIDGING, 8m.

Patented May 1, 1883.

K/AAAI/l/l (No Model.) 3 Sheets- Sheet 2. L. T. PYOTT.

ELEVATED RAILWAY, BRIDGING, 6w.

Patented May 1.1883.

(No Model.) 3 Sheets-Sheet 3. L. T. PYOT'T.

I ELEVATED RAILWAY, BRIDGING, 6w. No. 276,878. Patented May 1,1883.

UNITED" STA ES PATENT Orrice.

ouis-marrow, or PHILADELPHIA, PENNSYLVANIA.

ELEVATED RAILWAY, BRlDGlNG, 80C.

Sk'ECIFICATlOhl forming'part or Letterslatent No. 276,878, dated May 1, 1883,

d Application filed July 14, 18B). (No l'llQdCl-l 7 To all whom it may concern.-

Be it known that I, LOUIS '1. From, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in the Construction of Elevated Railways and The object of thisinvention 'is to furnish, a elevated railways and railways in which beams and girders extend from side to side of the street between the both these structures,

tracks very seriously obstructs the light from and injures the value of the adjacent property, ,while those railways in which'the track is placed on one line of columns as new construc'tedoscillate and are unsteady under the weight and momentum of the train. lVith also, the noise is rendered more annoying by the echoing of the sound from the many flat parts existing in the constructions. Myimproved system overcomes ,the'seobjectionable features, and also does away withthe use of poles for the carriage of telegraph, telephone, and other wires, and affords support for the pneumatic tubes used in the transmission of packages, &c. My improvement consists in the provision of a cylindrical girder supported from the ground by suitable standards having tracks for the carriage of trains, having space in its body for thestretchin g of telegraph and other wires and the laying of pnuematic tubes, and having suitable means at thetop of each standard for adjusting the level of the girder.

The improvement also relates to minor details of construction to be hereinafter set forth.

In order that my invention may be more fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure 1 represents in perspective a section of my improved elevated-railway system. Fig.

2 is a side elevation; Fig. 3, a vertical section.

Fig. 4. represents a vertical section of the form preferred tobe employed in turning a curve.

sheet-lead or rubber Bridgingfof which the following is a. specification.

Figs. 5 and 6 are respectively elevations. and plans of acrossing on my plan.

1 represents one of the standards which are arranged along the ling of way, and serve to support, by brackets 2 2, which are seated on tops of the standards, the cylindrical tube or girder 3, through the medium of flanges 4 4, bolted to or This girder 3 is made pp ments, whose flanges 5 5 together, as shown. The flanges 44 carry the wooden beams or cushions G G, on which are fastened the rails 7 7 forming the track.

At 8 8 I have represented a truck resting of a number of seg on the track.

formed in one with said tube,

19 (see Fig.3) on the are bolted-or riveted It will be seen that the upper flanges, 5 5, I

of the girder,beiug in close relation to the axles of the trucks, render them safe from accident in case of breakage.

The main cylindrical girder, as shown, forms the whole strength of the structure, such proportion to the gage of the track as will render it a safety'guard to prevent the car trom being precipitated tothe pavement.

Between the flanges 4. 4 and the tops of brackets 2 are interposed wedges 9 9, which are employed to level the girder, as required. Where crossings are to bemade aflat is formed, stillretainingover three'fit'ths of the area of the tube; For rounding curves the form shown in Fig. 4 is used.

The-track may be supported on two separate standards by means of beams or brackets 10 10, held by braces 11 11. In this form the girder is arched in shape, its lower sections,

holding 12 12, being parallel with each other and per pendicular to the platform or top l3. Additional tubes, 14, are 'arranged inside or suspended outside the girder to serve as pneu matic conveyers, or to conduct heated air or 16 are so arranged on the to permit ready ac 2 L erases thetrack-rails, such constructions being shown, :"or example, in the English Patent No. 1,752, granted A. D. 1858,

I am also aware that a pneumatic dispatchtube has been proposed as the main structure of an elevated railway and been provided for i this object with external rails located at the top'of the tube for receiving ordinary cars.

Having thus described my invention, the following is what I claim as new therein and desire tosecure by Letters Patent:

1. In an elevated railway, the combination or" the tubular or hollow beam or girder, having lateral flanges below the level of the top thereof, and track-rails supported on said flanges, with a supporting column or post adapted to receive said girder, whereby the g 2. In anelevated railway, the combination of the column, having the forked bracket and the adjustable wedges resting thereon, with the tubular or hollow beam or girder having lateral flanges and track-rails,'as and for the purpose set forth.

Lou-Is 'r. PYo'rT.

Witnesses WILLIAM H. 'DERBYsHIRE, ALBERT A. LONGAKER. 

